904288 has 48 divisors (see below), whose sum is σ = 2225664. Its totient is φ = 351360.

The previous prime is 904283. The next prime is 904289. The reversal of 904288 is 882409.

It is an Ulam number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904283) by changing a digit.

904288 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2281 + ... + 2647.

It is an arithmetic number, because the mean of its divisors is an integer number (46368).

2⁹⁰⁴²⁸⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 904288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1112832).

904288 is an abundant number, since it is smaller than the sum of its proper divisors (1321376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

904288 is a wasteful number, since it uses less digits than its factorization.

904288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 904288 is about 950.9405869979. The cubic root of 904288 is about 96.7020296038.

The spelling of 904288 in words is "nine hundred four thousand, two hundred eighty-eight".